Akihiko Tsuruoka

This inventor holds 21 USPTO granted patents and 3 published patent applications, plus 3 CIPO patents and 3 EPO patents, primarily in Pharmaceutical Chemistry. Top assignees: Eisai Company, Limited, Eisai R&d Management Co., Ltd., National Cancer Center. Active years: 1996-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akihiko Tsuruoka. Retrieved from https://idiyas.com/inventor/akihiko-tsuruoka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 21 (Patent Applications = 3)

% Patents Active = 85.7

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 3 (Patent Applications = 1)

Average Co-Inventor Count = 7.4

ph-index = 7

Forward Citations = 322(Granted Patents)

Location History:

Ibaraki Prefecture, JP (1996 - 1998)
Ibaraki Perfecture, JP (1998)
Ibaraki, JP (1996 - 2010)
Tsukuba, JP (2006 - 2014)

Company Filing History:

14 out of 677

Eisai Company, Limited

patents

7 out of 530

Eisai R&d Management Co., Ltd.

patents

1 out of 263

National Cancer Center

patents

where one patent can have more than one assignee

Years Active: 1996-2025

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Areas of Expertise:

Therapeutic Agent

Bile Duct Cancer

Antitumor Agent

c-Kit Kinase Inhibitor

Integrin Expression Inhibitor

Nitrogen-Containing Derivatives

Sulfonamide Compounds

Antifungal Agents

Cephem Compounds

Indole Compounds

Heterocyclic Compounds

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12364690 - Therapeutic agent for bile duct cancer (2025-07-22),

2. 8865737 - Antitumor agent for undifferentiated gastric cancer (2014-10-21),

3. 7994159 - c-Kit kinase inhibitor (2011-08-09),

4. 7834049 - Integrin expression inhibitor (2010-11-16),

5. 7612092 - Nitrogen-containing aromatic derivatives (2009-11-03),

6. 7550483 - Amorphous salt of 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide and process for preparing the same (2009-06-23),

7. 7468380 - Nitrogen-containing aromatic derivatives (2008-12-23),

8. 7253286 - Nitrogen-containing aromatic derivatives (2007-08-07),

9. 7109219 - Nitrogen-containing aromatic derivatives (2006-09-19),

10. 6787534 - Sulfonamide-containing heterocyclic compounds (2004-09-07),

11. 6673787 - Sulfonamide-containing indole compounds (2004-01-06),

12. 6638964 - Sulfonamide-containing indole compounds (2003-10-28),

13. 6469043 - Sulfonamide-containing indole compounds (2002-10-22),

14. 5792781 - Antifungal agents, processes for the preparation thereof, and (1998-08-11),

15. 5789429 - Antifungal agents, processes for the preparation thereof, and (1998-08-04),

Title: The Innovative Journey of Akihiko Tsuruoka

Introduction: Akihiko Tsuruoka, a pioneering inventor hailing from Tsukuba, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Akihiko Tsuruoka's latest patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable technology for healthcare monitoring, and sustainable energy solutions.

Career Highlights: With a career spanning over two decades, Akihiko Tsuruoka has worked with leading tech companies in Japan, spearheading research and development projects that have led to numerous successful patent applications.

Collaborations: Throughout his career, Akihiko Tsuruoka has collaborated with top researchers and engineers in the field, fostering a culture of innovation and pushing the boundaries of what is possible in the tech industry.

Conclusion: Akihiko Tsuruoka's relentless pursuit of innovation and his passion for creating technology that improves lives have solidified his reputation as a visionary inventor in the global tech community.

Profile summary based on public USPTO records.